If you mean Season 4 is over, yes.
But I'm pretty sure you are talking about no Minecraft Files episodes being uploaded in a long time. No, it's not dead. Chimney is on his honeymoon, and all episodes you see are pre-uploaded. Season 6 is coming out when he gets back. :)

I've been watching these for a while now and trying to get caught up with these and I'm liking them ssssoooo much so far! I started of with the spotlight seeds now moved on to watching the minecraft files and I'm loving them!

go to miners need new shoes and type his username into the box at the bottom of the editor. It will pull up whatever skin he is currently wearing. Then you just hit download and cosplay as chim whenever you want!